River Vartry facts for kids
Quick facts for kids River Vartry |
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River Vartry through Ashford
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| Native name | Abhainn Fheartraí |
| Physical characteristics | |
| Main source | Calary Bog, County Wicklow |
| River mouth | Irish Sea at Wicklow |
| Length | 33 kilometres (21 mi) |
The River Vartry ( Irish: Abhainn Fheartraí) is a river in County Wicklow, Ireland, and an important water source for the city of Dublin.
Name
The river first appears in 12th-century records with the name Fertir or Fortir. This is believed to derive from an Old Irish term meaning "fortress", perhaps referring to a ringfort at Glasnamullen. Similar placenames are found at Forther, Forthar, Fortriu and Ferter in Scotland.
Course
The Vartry rises in Calary Bog under the Great Sugar Loaf mountain in northern County Wicklow. Passing through a Dublin municipal reservoir complex, it flows east towards Ashford under Annagolan Bridge, and down through Devil's Glen. From there it passes the Nun's Cross Bridge (dating from the 18th century) on through Ashford, under the N11 road and continues eastwards into Broad Lough, which flows towards Wicklow town.
Broad Lough is a narrow lake which lies approximately 1 km north of Parnell Bridge in Wicklow town (at its closest point) and approximately 4 km north of Parnell Bridge (at its furthest point). This lake and surrounding wetlands evolved when a sand spit formed along the coastline cutting off the Vartry from its original egress. This sand spit is called The Murrough/Murragh and it carries the Dublin to Wicklow coastal railway line built in the 1860s. Broad Lough drains southwards into the Irish Sea through Wicklow town centre and harbour. The name of this stretch of water (approximately 1.5 km in length) is disputed. It is variously called the River Leitrim, the Broad Lough Estuary and the River Vartry.
City water supply
In 1861 Parliament passed the Dublin Waterworks Act creating a project to dam the River Vartry in Roundwood to form the Vartry Reservoir. The dam, accompanying waterworks, and a pipe tunnel through a part of the Wicklow Mountains, were completed in 1865, providing the first clean mass source of water for Dublin, replacing water obtained from the canals.
The Vartry Reservoir and Waterworks still supply some 200,000 homes, providing 40% of all of Dublin's water needs.
